Tunable thermal rectification in silicon-functionalized graphene nanoribbons by molecular dynamics simulation

Yuan, Kehong; Sun, Mingman; Wang, Zhaoliang; Tang, Dawei

doi:10.1016/j.ijthermalsci.2015.07.004

Cited by 30 publications

(22 citation statements)

References 46 publications

(65 reference statements)

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“…This reveals that functionalization could facilitate efficient modulation of the thermal conductivity of graphene and also usefully applied in thermal management of nanoelectronic devices based on graphene nanocomposites (Chien et al 2011, Chien et al 2012. However, studies have revealed that nanocomposites based on uniformly distributed Si nanoparticles in graphene greatly improved storage capabilities of Li ion and also enhanced its cycling stability as anodes for batteries (Yuan et al 2015). This Si-graphene nanocomposite electrode attained a very high reversible capacity of around 1100 mAh g -1 at 8 Ag -1 .…”

Section: Thermal Rectification Of Nanocompositesmentioning

confidence: 99%

“…Thus, with accruable advantages of Si-graphene nanocomposites as materials for electrode applications, they show potential use in wearable electronics and renewable energy storage. Thus, a recent study which investigated the thermal rectification in silicon-functionalized graphene using classical nonequilibrium molecular dynamics (NEMD) technique revealed that silicon-functionalized graphene exhibited enhanced thermal rectification, and the rectification factor can be highly influenced by the uniform distribution of silicon atoms (Yuan et al 2015).…”

Section: Thermal Rectification Of Nanocompositesmentioning

confidence: 99%

See 1 more Smart Citation

Recently emerging trends in thermal conductivity of polymer nanocomposites

Idumah

Hassan²

2016

Reviews in Chemical Engineering

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Due to escalating power densities in electronics, information, communication, energy storage, aerospace, and automobile technologies, heat dissipation has become immensely essential for the efficient performance and reliability of photonic, electronics, optoelectronics, and other devices in order to proactively prevent premature failure due to overheating. The functionalization and synergistic inclusion of thermally conducting nanoparticles such as carbon derivatives and metallic and ceramic fillers into polymer matrices have resulted in development of thermally conducting polymer nanocomposites. This has enlarged the scope of application of these materials in areas hitherto restricted due to poor thermal conductivity and, therefore, opened broad windows of opportunities for polymer nanocomposites as emerging alternative replacements for metal components in various applications where effective heat dissipation is compulsory for device performance. Thus, this paper critically discusses globally emerging technologies applied in the development of thermally conductive polymer nanocomposites for various industrial applications.

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Section: Thermal Rectification Of Nanocompositesmentioning

confidence: 99%

Section: Thermal Rectification Of Nanocompositesmentioning

confidence: 99%

Recently emerging trends in thermal conductivity of polymer nanocomposites

Idumah

Hassan²

2016

Reviews in Chemical Engineering

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“…is fixed as 300 K, the normalized temperature bias ∆ = 0 3, and change the length from 12 nm to 60 nm, the result show that the L thermal rectification decreases with the increasing of the system length, which due to the thermal transport transits to the diffusive regime. But 7,15 when the length is more than 60 nm, the TR ratio still have 65%. This indicates that such a heterostructure is a very excellent thermal rectifier which can be suitable for a wide range of system length.…”

Section: Resultsmentioning

confidence: 95%

“…MD simulation is a powerful tool to study the thermal properties of nanostructures. Using this [8][9][10] approach, thermal conductivity of graphene nanoribbons, graphene 11-13 14 phononic crystal, graphene disk, graphene with impurities and 15,16 defects have been studied. Comparing with pristine graphene, the thermal conductivity of these structures is greatly reduced.…”

Section: Introductionmentioning

confidence: 99%

Phonon Thermal Transport Properties of Graphene Periodically Embedded with Four- and Eight-membered Rings: a Molecular Dynamics Study

Tang¹,

Yu²,

Li³

et al. 2018

ES Mater.Manuf.

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It is studied that the thermal conductivity of graphene periodically embedded with four-and eightmembered rings (GFERs) by using nonequilibrium molecular dynamics simulations. This kind of structure has been experimentally synthesized recently. The dependence of thermal conductivity on the length (L) and temperature(T) is investigated. It is found that the thermal conductivity of GFERs is significantly lower than that of pristine graphene. On the other hand, the length dependence of thermal conductivity follows ~ logL behavior. In addition, the −α temperature dependence of thermal conductivity of GFERs follows ~T behavior. It is also found that there exists large thermal rectification (TR) in graphene-GFERs heterostructures, the heat flux from the pristine graphene to the GFERs direction is larger than that in the opposite direction. The dependence of the TR ratio on system parameters is investigated.

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“…Garphene (G) related compounds are interesting due to their surfaces making them proper for interactions with other atoms and molecules for applications from environmental to biological systems [10,11]. Modifications and functionalizations of G structures could yield specific characters for desired applications further to original G structures [12]. The G structures are also expected to be proper candidates for drug design and delivery systems to increase the efficiency of medical treatments [13].…”

Section: Introductionmentioning

confidence: 99%